Perhaps the CM did it wrong, but when we booked CRT dinner last February for May 2008, I told the CM we were on the DDP, but would pay OOP for CRT because we were using 2 credits for California Grille. Our credit card was charged immediately...it was on the February bill for the full amount, 4 adults. At the time, the CM told me that if we cancelled with the required notice, the amount would be credited back. Or if we decided to use DDP credits for CRT they would credit our charge card at that time. But they very definitely charged our CC for the full amount in advance.